Tension-regulator for spinning-machines.



J G CUNNINGHAM & F. W. MANION.

TENSION REGULATOR FOR SPINNING MACHINES.

APPLICATION man APR. 3. I914.

Patented Apr. 27, 1915.

Sumter;

IHE NORRIS PEIERS 60., PHOTOVLITHOH WASHINGTON, 0. c

ran erarns Parana orrrbn.

JOHN G. CUNNINGHAM AND FRANK W. MANION, 0F WATERFORD, NEW YORK.

TENSION-REGULATOR FOR SPINNING-MACHINES.

Specification of Letters Patent.

Application filed April 3, 1914. Serial No. 829,320.

To all whom it may concern Be it known that we, J OI-IN G. CUNNING- HAMand FRANK W. MANION, citizens of the United States, residing atWaterford, in the county of Saratoga and State of New York, haveinvented certain new and useful Improvements in Tension-Regulators forSpinrung-Machines; and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it ap pertains to make and use thesame, reference being had to the accompanying drawings, and to lettersor figures of reference marked thereon, which form a part of thisspecification.

This invention relates to spinning machines and has for its object theprovision of mechanism adapted to efliciently regulate the'tension ofthespindle driving band in order to obviate all slacking of the said band.

A further object of this invention is to provide a tension regulator forspindle driving bands, adapted to take up all slack in the spindledriving band in such a manner that the speedof the driving band willautomatically cause the regulation of the tensioning device in order totighten the band.

A still further object of the invention is to provide a tensionregulator for spindle driving bands which shall be adapted toautomatically take up all sudden shocks or unusual strains upon thedriving band, thus preventing breaking the driving band.

With these and other objects in view, this invention consists in thecombination and arrangement of the various related elements of a tensionregulator for spindle driving bands as hereinafter described and moreparticularly set forth in the appended claims.

Referring to the drawing forming apart of this application whereinsimilar reference numerals indicate similar parts wherever used: Figure1 is a detached perspective view of the device. Fig. 2 is atop plan viewof a portion of a spinning ma chine showing the device in operativeposition.

The numeral 3 designates the usual spindle carrier support common tomachines of the character adapted for cooperation with the presentdevice. Secured to this support by means of screws 4:, 5, 6 and 7, orany other suitable fastening means, are two members 8 and 9,eachprovided with a longitudinal slot 10, 11, and braced at their outer endsby means of across rod 12 mounted upon the members 8 and 9 by means ofbolts engaging the slots 10, 11.

Slidably mounted upon the member 8 is an arm 13, carrying a bolt 14engaging the slot 10 to allow longitudinal movement of the arm 13relative to the member 8, when it is desired to adjust the position ofthe arm. Upon the outer end of the arm 13 is a loose pulley wheel 15,the purpose of which will be hereinafter described. A similar arm 16 ismounted on the member 9, and is adjustable by means of a bolt 17 Theouter end of arm 16, is provided with a pulley wheel 18. The inner endofeach of the arms 13 and 16 is provided with a slot 19 and 19. The armsare connected by means of a short link 20 carrying bolts 21 and-22 whichloosely en age the slots 19 and 19 respectively, where y the bolts mayslide during the operation of the device. The function of the slots 19,19 is similar to that of the slots 10, 11. Any shock which would tend toallow either of the arms l316 to slide outwardly in their respectiveslots 10-1l would also be taken up by the movement of the members 21, 22within their respective slots 19, 19, thus assisting the spring 23 intensioning the band. One end of a spring 23 is secured to the link andits oppositeend is fastened to an angle iron 24 upon the spindle support3 by means of an adjustable securing device 25. The spring 23 is sotensioned as to normally exert a pull upon the link member toward thespindle support 3 and to thus cause a relative outer movement of theouter ends of the arms 13 and 16 and the pulley wheels 15 and 18.

The operation of the device is as follows: The usual spindle drivingband 26 is passed around the drum 27 and around the various spindles 28and 29 in the well known manner. The band is also passed around thepulleys 15 and 18. By this arrangement it will be seen that the actionof the spring 23 will pull the member 20 toward the spindle support 3which will cause the inner ends of the arms 13 and 16 to move in asimilar direction, thus acting as levers, using the bolts 14 and 17 asfulcrums and causing a relative outward movement of the pulleys 15 and1.8, exerting a tightening pressure upon the band 26, thus taking up allslack.

The slots in the various members allow the parts to-move freely in caseof sudden shock or pressure upon the band 26, thus obviating the dangerof breaking the band. The slots 19, and the link 20 perform a veryimportant function in that when a sudden pull is exerted on one of thepulleys its arm may move independently of the companion arm and pulley,as indicated in dotted lines in Fig. 2. Of course when this occurs thecompanion arm, will through the link con nection and the spring becomeadjusted the same as the arm receiving 'the sudde n pull.

' This feature is of importance for it allows carried at the outerendfof. each of said arms, a link loosely connecting the inner ends ofsaid arms, to permit one of thearms to move independently of the other,and tensio'mng means connected to the link and adapted to cause ,amovement of'said arms whereby to tighten 'a'band engaged by said bandreceiving means. I

2. A tension regulator for spinning machines, comprising 'a plurality ofsupports,

"an arm pivotally'and slidably carried by eachj'o'f said supports,thefinn'er end of each arm'beingp rovided'with a slot, a loose pulleycarried at .the outer end of each arm, a link looselyconnectingthejinner ends of said; arms, pivots extending from the ends of the linkandflpa'ssin'g loosely through the slots in the armsto' permit'o'ne armto move independently of the other arm, a spring adapted to exert a pullupon the link in one directionto causean opposite movement of the outerends 'oftsaid arms.

3. A tension regulator for spinning machine bands, comprising a pair ofsupports provided with slots therein, an arm mounted on eachoftsaid'supports,fpivots "extending from the arms and projecting throughCopies of this patent may be obtained for the slots whereby to adjustthe position of the arms,a loose pulley on the outer end of each arm,the inner end of each arm having a slot, a link interposed between theinner ends of the arms, pivots extending from the outer ends of the linkand loosely passing through the slots in the arms, a spring connected tosaid link to exert a pull in one direction upon said link whereby tocause an opposite movement of the outer ends of the arms, the slots inthe arms and the pivots loosely engaging therein permitting independentmovement of either arm.

4:. In a spinning machine, the combination with the spindle rail, of apair of supports mounted thereon and having slots therein, an armmounted on each of said supports by means of a bolt on said arm engagingthe slot, and adapted to slide insaid slot upon sudden loosening of thestrain on said arm, a drum, a loose pulley onthe outer end of each arm,a spindle driving band engaging each of said pulleys and the drum, alink loosely connectingthe inner ends of said arms, a spring connectedto said rail and said link adapted to pull the link and theends of thearms toward therail whereby to cause an outward movement of, the outerends of the arms to take up the slack of the band carried by thepulleys.

5. A tension regulator for spinning Inachines, comprising supports, armspivotally mounted .on the supports, the inner end of each arm having aslot, a pulley mounted on the outer end of each arm, a link interposedbetween the inner ends of the arms, connections extending from the linkand passing loosely through the slots, whereby to permit one arm to moveindependent of the other, andtension means for causing the outerends otthe arms to move in an opposite direction to the inner ends.

In testimony whereof we have signed our names to this specification inthe presenceof two subscribing witnesses v s JOHN G. CUNNINGHAM.

U FRANK W. MANION.

Witnesses E v H. R. VAN KnEnoK,

FRED H. POTTER.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

